0.92%C超细钢丝组织控制及断裂分析  

Microstructure control and fracture analysis of 0.92%C ultra-fine steel wire

作　　者：陶学伟[1,2] 王章忠[1,2] 付洪波 毛向阳[1,2] 朱帅帅[1,2] 

机构地区：[1]南京工程学院材料工程学院,江苏南京211167 [2]江苏省先进结构材料与应用技术重点实验室,江苏南京211167 [3]张家港骏马钢帘线股份有限公司,江苏张家港215617

出　　处：《金属热处理》2015年第2期114-117,共4页Heat Treatment of Metals

基　　金：江苏省自然科学基金(BK20130738);南京工程学院大学生科技创新基金(N20141702)

摘　　要：研究了不同等温铅浴淬火后0.92%C钢丝的组织与性能,并对钢丝断裂机理进行了分析。结果表明,提高奥氏体化温度至980℃、降低铅浴温度至585℃,直径0.84 mm钢丝中珠光体含量高,片层间距细小、均匀,抗拉强度、断面收缩率及硬度均达到最大,且钢丝拥有较强的连续拉拔性能,湿拉过程中的断丝率仅为0.004次/km。Microstructure and mechanical properties of 0.92%C steel wire after patenting treatment were investigated, as well as the fracture mechanism. The results show that when the austenizing temperature rises to 980 ℃, and the lead bath temperature decreases to 585 ℃, the steel wire with diameters of 0.84 mm has a high pearlite content, fine and uniform lamellar space, and its tensile strength, reduction of area, hardness all reach to maximum. It also possesses excellent continuous drawing property, and breakage ratio of the wire is just 0.004 breaks/ km during wet drawing process.

关 键 词：超细钢丝 铅浴淬火 显微组织 力学性能 断裂 

分 类 号：TG161[金属学及工艺—热处理]